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Checking Mysql Database Exists From Cli

Posted on Wednesday 26th February 2020

A little background

As part of a deployment script, needed a way to detect if a database already exisit, and if not, create and seed the database.

Simple Methods

1) Show Databases

This consists of just running the SHOW DATABASEs command and piping through to grep to search for the database name.


2) Using mysqlshow

This uses the mysql show command to check for the database and echo a string if found

mysqlshow -uroot -psecret "DATABASENAME" > /dev/null 2>&1 && echo "Database exists."